138804197 has 8 divisors (see below), whose sum is σ = 160089600. Its totient is φ = 117882864.

The previous prime is 138804173. The next prime is 138804233. The reversal of 138804197 is 791408831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138804197 - 2²⁴ = 122026981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138804157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90197 + ... + 91722.

It is an arithmetic number, because the mean of its divisors is an integer number (20011200).

Almost surely, 2^138804197 is an apocalyptic number.

It is an amenable number.

138804197 is a deficient number, since it is larger than the sum of its proper divisors (21285403).

138804197 is a wasteful number, since it uses less digits than its factorization.

138804197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182035.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 138804197 is about 11781.5192993094. The cubic root of 138804197 is about 517.7667999665.

The spelling of 138804197 in words is "one hundred thirty-eight million, eight hundred four thousand, one hundred ninety-seven".